脫硫廢水膜濃縮濃水電解制氯工藝分析
發(fā)布時間:2018-05-31 17:40
本文選題:廢水零排放 + 脫硫廢水; 參考:《熱力發(fā)電》2016年09期
【摘要】:針對某電廠脫硫廢水膜濃縮COD含量高且含少量F-等特點,采用標準三電極電化學體系試驗研究了2種適用于脫硫廢水膜濃縮濃水的DSA陽極材料的電解制氯性能,并考察了電流密度、溫度、極板清洗等因素對電解制氯的影響。結(jié)果表明:Keramox涂層(不抗氟)電極的制氯性能明顯優(yōu)于MS-0880涂層(抗氟)電極;Keramox涂層電極電解的最佳電流密度為100mA/cm2,最佳溫度為20℃,相應的電流效率可達62.6%,直流電耗為4.59(kW·h)/kg;通過定期酸洗可有效恢復電極性能;2種電極的強化壽命均超過30h,滿足工業(yè)應用要求;在試驗工況下,電解制氯過程符合零級動力學方程。
[Abstract]:Aiming at the characteristics of high COD concentration and a small amount of F- in desulfurization wastewater of a power plant, the electrolytic chlorine production properties of two kinds of DSA anode materials suitable for concentrated water concentration in desulfurization wastewater were studied by using standard three-electrode electrochemical system. The effects of current density, temperature and plate cleaning on electrolysis chlorine production were investigated. The results show that the chlorine preparation performance of the 1: Keramox coated electrode is obviously better than that of the MS-0880 coating electrode. The optimum current density is 100 Ma / cm 2 and the optimum temperature is 20 鈩,
本文編號:1960723
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